Former boxing champ Kelly Pavlik has been formally charged with assault -- for his role in an alleged pellet gun attack that was captured on video and posted on TMZ Sports.
As we previously reported, the alleged victim claims he was working on a pond at Pavlik's Ohio home in August when the boxer grabbed a 22-caliber pellet gun and opened fire on him.
If convicted, Pavlik faces up to 180 days in jail.
In the video, you can hear the man scream for Kelly to stop ... but despite his pleas, someone fires a weapon ... and you hear the man yell, "Kelly ... Ow! You son of a bitch. It went right through my arm."
"You just shot me in the arm ... dude I got blood."
The camera then pans over and you see Kelly holding a pellet gun.
We've spoken to Pavlik about the incident in the past -- and he claimed he had no intent to hurt the other man ... saying he was just playing around and the victim was a friend of his at the time.